Regulatory Matters (Tables)

6 Months Ended

Jun. 30, 2015

Electric Rate Case [Member] | Consumers Energy Company [Member]

Public Utility, Property, Plant and Equipment [Line Items]

Schedule of Requested Annual Rate Increase

In Millions
Components of the rate increase
Investment in rate base	$	185
Addition of natural gas-fueled electric generating plant		35
Operating and maintenance costs		26
Cost of capital		21
Working capital		6
Cost-reduction initiatives		(80)
Gross margin		(30)
Total	$	163